Wheel.



J. DU BOTH.

WHEEL.

(Application filed Aug'. 3, 190m) Pmnted may 2o, |902L Qlo Model.)

UNITED v STATES' PATENT Ottica.

JOHN DU ROTH, OF UNIONTOWN, PENNSYLVANIA.

WHEEL.

SPECIFICATION forming part of Letters Patent No. 700,183, dated May 20, 1902.

n Application filed August 3, 1900. Serial No. 25,783. (No model.)

To coll whom t may concern:

Be it known that I, JopHN DU ROTH, a lcitizen of Germany, residing at Uniontown, in

the county of,` Fayette and State of Pennsyl- Vania, have invented or 'discovered new and useful Improvements in Vheels, of which the following is a specification.

In the accompan yin gdrawin gs, which make part of this specification, Figure I is a section on the line I I of Fig. II, showing the' oilcompartments. Fig. II'is a section on the line II II of Fig. I. Fig. III is a detail view of the face of the wheel, showing the oil-cups. Fig. IV is arsection on the line IV IV of Fig. III.

The purpose of my invention, generally stated, is to provide means for the economical distribution of oilVV from the oil-box to the axle of a wheel and to prevent the leakage of oil from theoil-filling'hole of the oil-box and from the axle;

In the drawings, Arepresents the oil-box' portion of the hub or the outer wall of the oil-box; B, thejhubgO, the spokes of the wheel, and O' longitudinal partitions connecting the outer wall A and the hub B.

D representsY contracted openings through the partitions O at the hub B, and preferably centrally disposed thereof, providing means of communication for the oil between the several compartments E -E' E2 E3 E4y E5 of the oil-box formedpby the partitions-O', the outer Wall A,'thehub B, andthe' two end walls of the oil-box. Oil-vis introduced vinto either of the compartments E or E3, as may be desired or convenient, through the valve mechanisms F F. The.valve mechanisms F F are each composed of` a `valve-seat G3, a ball-valve G2, and a springG for holding the ball-valve normally against its seat. G is a packing-ring surrounding the axle I-I at the inner side of the wheel.

I is a spring-pin for holding the wheel in place on the axle.

K K are contracted openings in the bottoms of the compartments E E3 for feeding oil from said compartments to the axle.

Either or both of the compartmentsE E? having been supplied with a sufficient quantity of oil by means of the valve mechanisms F F, the operation-thereafter is as follows: By the motion of the wheel when first started the oil passes into the several compartments of the oil-box,'wherein by the action of centrifugal force throwing the larger portion of the oil toward the vouter wall A of the box itis retained. A suflicient quantity, however, iows down the sides of the partitions O as may be above the pl'ane of the axle. The quantity so flowing to the feed-holes K K will be small, but enough to meet the requirements. Thisarrangement insures a steady and continuous flow of oil toward the feed-holes K, While the bulk of the oil is held in reserve. Y Y

Another vfeature ofrmy device is that by reasonof the location of the openings or ports D at Athe hub B, a majority of the compartments/E EQ'tc., ofthe oil-box will holdtheir lreserve of oil no matter in ywhat position the wheel may come to rest, and when the wheel begins to revolve there will be av moreY equal distribution of oil throughout the several compartruents.

' The construction ofmydevice is practical not'only in respect to its' oiling capabilities, but also as to themanufacture of the same, as I have overcome all difficulties in making the core, by which I can cast the wheel complete in one piece.

In casting my Wheel I use a pattern with a solidhub. When this pattern is removed from the sand, I place in the central hole 'made ,by the hub a chain or series of corepieces for the compartments E to E5. This chain of cores is connected in series by bridging cores for'theV oil-passages D between the several compartments and is held up or suspendedV bymeans of wires in the usual manner. It will be understood, of course, that 'the pattern and cores are made in halves,

which when placed together form the complete mold, and that the usual vents are provided. Atter casting the sand is shaken and washed out through the passages D and the holes which are to receive the valve-plugs F F. In the case of wheels having spokes the partitionsv C' preferably for'm" con'tinuations of the spokes, andvthus strengthen the wheel.

I claim* v 'Y l. In a wheel, a hub, an oil-boxsurrounding the, hub, longitudinal partitions in said oil-box dividing the same into a series of comi pletely-closed compartments excepting that there are contracted oil passages or ports formed in each of the partitions at the bases thereof which constitute the only means of communication between said compartments,

the fioor of one or more of the compartments having a contracted opening for feeding? oil to the aXle, and means by which the oil-box v maybe supplied with oil; substantially as described.

2. In a wheel, a rim, a hub, an oil-box surrounding said hub, spokes connecting said oilbox and rim, the spokes extending through the oil-box and dividing the same into a series of completely-closed compartments excepting that there are contracted oil passages 

